It isn’t shown on page(because I didn’t want to give away the ending), but Sharona grabbed it during all the confusion that resulted when Engorgia realized that she was no longer controlling the Kharnivors.
(It happened between pages 44 and 45)

I’m only surprised she let ex-king jerkface put his hands on her (not to mention all the rest) before she tied him up for delivery. Would’ve been quicker to rabbit-punch him, gag him and tie him to a tree, surely…